Do you remember what were you doing 文章第一段句子成分劃分（在線等）
Do you remember what you were doing
People often remember what they were doing when they heard the news of important events in history.In the United States,for example,many people remember what they were doing on April 4,1968.This was one of the most important events in modern American history.On this day,Dr Martin Luther King was killed in the city of Memphis in America.Although some people may not remember who murdered him,they remember what they were doing when they heard about the event.
把這一段每個(gè)句子的句子成分都劃分出來.